TWM479764U - Nanostructure thin film of titanium dioxide particle with nano silver particle - Google Patents
Nanostructure thin film of titanium dioxide particle with nano silver particle Download PDFInfo
- Publication number
- TWM479764U TWM479764U TW102224034U TW102224034U TWM479764U TW M479764 U TWM479764 U TW M479764U TW 102224034 U TW102224034 U TW 102224034U TW 102224034 U TW102224034 U TW 102224034U TW M479764 U TWM479764 U TW M479764U
- Authority
- TW
- Taiwan
- Prior art keywords
- titanium dioxide
- nano
- nano silver
- silver
- particles
- Prior art date
Links
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 46
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000002245 particle Substances 0.000 title claims abstract description 27
- 239000002086 nanomaterial Substances 0.000 title abstract 2
- 239000010409 thin film Substances 0.000 title abstract 2
- 239000002131 composite material Substances 0.000 claims description 19
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 239000012798 spherical particle Substances 0.000 claims description 3
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 12
- 239000000758 substrate Substances 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 abstract 2
- 238000005286 illumination Methods 0.000 abstract 1
- 229910021649 silver-doped titanium dioxide Inorganic materials 0.000 abstract 1
- 239000011941 photocatalyst Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 7
- 239000004332 silver Substances 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000001699 photocatalysis Effects 0.000 description 5
- 238000005202 decontamination Methods 0.000 description 4
- 230000003588 decontaminative effect Effects 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical group [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
Description
本新型揭示一種奈米銀複合二氧化鈦薄膜之結構。 The invention discloses a structure of a nano silver composite titanium dioxide film.
所謂光觸媒，就是經過光的照射，可以促進化學反應的物質。目前可用來作為光觸媒的物質有二氧化鈦等氧化物，其中二氧化鈦因為具有強大的氧化能力，高化學穩定度，及無毒的特性，最常被使用來做為光觸媒的物質。光觸媒可用於處理空氣中低濃度的有害化學物質，本身不會釋出有害物質，因此是極佳的環境淨化用觸媒。光觸媒具有消臭、殺菌、抗菌、防汚和除去有害物質等功能，但目前的光觸媒於365nm紫外光下抗菌效果有限，於無紫外光的環境下無抗菌效果。 A photocatalyst is a substance that promotes a chemical reaction by irradiation of light. The materials currently available as photocatalysts include oxides such as titanium dioxide, which are most commonly used as photocatalysts because of their strong oxidizing power, high chemical stability, and non-toxic properties. Photocatalyst can be used to treat low concentrations of harmful chemicals in the air, and does not release harmful substances by itself. Therefore, it is an excellent catalyst for environmental purification. Photocatalyst has the functions of deodorization, sterilization, antibacterial, antifouling and removal of harmful substances. However, the current photocatalyst has limited antibacterial effect under 365 nm ultraviolet light, and has no antibacterial effect in the absence of ultraviolet light.
所謂奈米銀，就是將銀金屬奈米化形成各類銀粒子，目前銀可用來當作抗菌的材料，但是隨著使用時間增長，奈米銀材料表面會有生物膜的附著，因而降低了抗菌的效果。 The so-called nano silver is to form silver nanoparticles into various types of silver particles. At present, silver can be used as an antibacterial material, but as the use time increases, the surface of the nano silver material will have biofilm adhesion, thus reducing Antibacterial effect.
二氧化鈦的結晶構造有正方晶系的金紅石(rutile)型、銳鈦礦(anatase)型及屬於斜方晶系的板鈦礦(brookite)型3種。其中只有銳鈦礦結構具光觸媒的效果。光催化處理程序之光分解機制是藉由紫外光或太陽光激發光觸媒，使觸媒產生電子與電洞，藉 以氧化表面吸附之物質，進而將表面吸附之物質分解為小分子。以二氧化鈦為例，二氧化鈦吸收光產生電子及電洞，此電洞具有相當強之氧化能力，可以將吸附在二氧化鈦表面之汚染物分子直接氧化使其分解，或者將吸附於物質表面之水分子氧化為氫氧自由基。原本大分子之汚染物，經由光觸媒反應將大分子裂解，達到將汚染物清除之目的。 The crystal structure of titanium dioxide includes three types of a tetragonal rutile type, an anatase type, and an orthorhombic brookite type. Among them, only anatase structure has the effect of photocatalyst. The photodecomposition mechanism of the photocatalytic treatment program is to excite the photocatalyst by ultraviolet light or sunlight to cause the catalyst to generate electrons and holes. The substance adsorbed on the surface is decomposed into small molecules by the substance adsorbed on the surface. Taking titanium dioxide as an example, titanium dioxide absorbs light to generate electrons and holes. This hole has a relatively strong oxidizing power, which can directly oxidize the pollutant molecules adsorbed on the surface of titanium dioxide to decompose or oxidize water molecules adsorbed on the surface of the substance. It is a hydroxyl radical. The pollutants of the original macromolecules cleave the macromolecules through photocatalytic reaction to achieve the purpose of removing pollutants.
光觸媒被廣泛地研究，並應用在環保、能源、殺菌、自我潔淨等方面。自1972年，Fujishima和Honda首次在Nature雜誌上發表TiO2經照光後會分解水產生H2及O2後，越來越多人投入TiO2光催化性質相關的研究，並致力於各種可能的改質方法，以提高TiO2光觸媒的效果。 Photocatalysts are widely studied and applied in environmental protection, energy, sterilization, and self-cleaning. Since 1972, Fujishima and Honda first published in Nature magazine that TiO 2 will decompose water to produce H 2 and O 2 after illuminating. More and more people are investing in research on the photocatalytic properties of TiO 2 and are committed to various possibilities. Modification method to improve the effect of TiO 2 photocatalyst.
二氧化鈦可以製作成粉體直接投入廢水中，也可以塗佈於基材表面，藉紫外光的照射加速分解水和空氣中的有機物質，但是會面臨如何回收粉體，及觸媒的表面積能否完全接受到紫外光的照射等問題。為了改善這些問題，將二氧化鈦做成薄膜，以提高二氧化鈦的暴露面積增加光催化效果，這樣不但能解決上述問題，同時更增加二氧化鈦光觸媒的用途。 Titanium dioxide can be made into powder directly into the wastewater, or it can be applied to the surface of the substrate. The ultraviolet light can accelerate the decomposition of organic substances in water and air, but it will face how to recover the powder and the surface area of the catalyst. Fully accepting problems such as exposure to ultraviolet light. In order to improve these problems, titanium dioxide is formed into a film to increase the exposed area of titanium dioxide to increase the photocatalytic effect, which not only solves the above problems, but also increases the use of the titanium dioxide photocatalyst.
本新型揭示一種以奈米銀複合二氧化鈦薄膜負載在載體上，此二氧化鈦薄膜厚度為小於1毫米，二氧化光觸媒薄膜的結構，其係有奈米級二氧化鈦固體顆粒承載在載體上，二氧化鈦為橢圓球形顆粒，具有銳鈦礦結構，此橢圓球形之長軸為10至15奈米，短軸為3至6奈米，此橢圓形球體比先前技藝所使用的圓球形二氧化鈦的活性高，並且複合奈米銀顆粒於二氧化鈦表面。 The invention discloses a structure in which a nano-silver composite titanium dioxide film is supported on a carrier. The thickness of the titanium dioxide film is less than 1 mm, and the structure of the photocatalytic film is nanometer-sized titanium dioxide solid particles supported on a carrier, and the titanium dioxide is an elliptical sphere. a particle having an anatase structure, the elliptical sphere having a major axis of 10 to 15 nm and a minor axis of 3 to 6 nm, the elliptical sphere having higher activity than the spherical titanium dioxide used in the prior art, and the composite naphthalene The rice silver particles are on the surface of the titanium dioxide.
藉由複合材料可結合兩種材料之優點，利用奈米銀本身之高抗菌效果來加強光觸媒於無紫外光下無抗菌效果之缺點，以及利用光觸媒的自潔去汙功能來降低奈米銀在抗菌過程於粒子表面沉積的生物膜。而此橢圓形球體二氧化鈦表面附著奈米銀顆粒將比先前之相關單獨使用形二氧化鈦的活性高，自潔效果更佳，此二氧化鈦薄膜在載體上具有超親水性，並具有更強的去汚與自潔的功效。以日光燈、紫外光燈或太陽光照射，具高的活性。 By combining the advantages of the two materials, the composite material can utilize the high antibacterial effect of the nano silver itself to enhance the shortcomings of the photocatalyst without antibacterial effect under ultraviolet light, and the self-cleaning decontamination function of the photocatalyst can be used to reduce the nano silver in the silver An antibacterial process that deposits a biofilm on the surface of a particle. The surface of the elliptical sphere titanium dioxide adhered to the nano silver particles, which has higher activity than the previously used titanium dioxide alone, and has a better self-cleaning effect. The titanium dioxide film has super hydrophilicity on the carrier and has stronger decontamination and Self-cleaning effect. It is highly active by irradiation with fluorescent lamps, ultraviolet lamps or sunlight.
1‧‧‧載體 1‧‧‧ Carrier
2‧‧‧奈米銀複合二氧化鈦薄膜 2‧‧‧Nano silver composite titanium dioxide film
22‧‧‧二氧化鈦 22‧‧‧ Titanium dioxide
24‧‧‧奈米銀 24‧‧‧Nee Silver
第一圖為奈米銀複合二氧化鈦薄膜在載體上之結構示意圖。 The first figure is a schematic diagram of the structure of a nano-silver composite titanium dioxide film on a carrier.
第二圖為奈米銀顆粒複合二氧化鈦薄膜結構示意圖。 The second figure is a schematic diagram of the structure of the nano-silver particle composite titanium dioxide film.
請參閱第一圖及第二圖，本創作係提供一種奈米銀複合二氧化鈦薄膜在載體上之結構，奈米銀複合二氧化鈦薄膜2係有奈米級二氧化鈦固體顆粒與奈米銀顆粒承載在載體1上，二氧化鈦22為橢圓球型之顆粒，具有銳鈦礦結構，此橢圓球形之長軸為10至15奈米，短軸為3至6奈米，而奈米銀24為小於100nm之圓球形之顆粒，第二圖中圓球形之顆粒大小不一係顯示奈米銀24顆粒有大有小。此複合材料薄膜2在載體1上具有超親水性，並具有強的去汚、自潔與抗菌的功效。以日光燈、紫外光燈或太陽光照射，具高的活性。奈米銀顆粒係附著於二氧化鈦之表面上。 Please refer to the first figure and the second figure. The present invention provides a structure of a nano-silver composite titanium dioxide film on a carrier. The nano-silver composite titanium dioxide film 2 has nano-sized titanium dioxide solid particles and nano silver particles supported on the carrier. In the above, the titanium dioxide 22 is an ellipsoidal particle having an anatase structure, the major axis of the elliptical sphere is 10 to 15 nm, the short axis is 3 to 6 nm, and the nano silver 24 is a circle of less than 100 nm. The spherical particles, in the second figure, the spherical particles of different sizes show that the nano silver 24 particles are large and small. The composite film 2 has super hydrophilicity on the carrier 1 and has strong decontamination, self-cleaning and antibacterial effects. It is highly active by irradiation with fluorescent lamps, ultraviolet lamps or sunlight. The nano silver particles are attached to the surface of the titanium dioxide.
具有橢圓形球體之二氧化鈦22顆粒比先前技藝所使用的圓球形二氧化鈦的活性高，而奈米銀24顆粒為小於100nm之粒子。二氧化鈦22顆粒為橢圓球形時，其中間的空隙較少，因此單位體積內二 氧化鈦22的量增加，而且二氧化鈦22為橢圓形球體時，其光觸媒活性會增加。此橢圓形球體比先前技藝所使用的圓球形二氧化鈦的活性高，又複合了奈米銀24材料可增加抗菌與自潔功效，此二氧化鈦薄膜在載體上具有超親水性，並具有強的去汚與自潔的功效。以日光燈、紫外光燈或太陽光照射，具高的活性以及提高抗菌功效。 The titanium dioxide 22 particles having an elliptical sphere are more active than the spherical titanium dioxide used in the prior art, while the nanosilver 24 particles are particles smaller than 100 nm. When the titanium dioxide 22 particles are ellipsoidal, the gap between them is small, so the unit volume is two. When the amount of the titanium oxide 22 is increased and the titanium oxide 22 is an elliptical sphere, the photocatalytic activity thereof is increased. The elliptical sphere has higher activity than the spherical titanium dioxide used in the prior art, and the nano silver 24 material is combined to increase the antibacterial and self-cleaning effect. The titanium dioxide film has super hydrophilicity on the carrier and has strong decontamination. With the effect of self-cleaning. Irradiated by fluorescent lamps, ultraviolet lamps or sunlight, it has high activity and improved antibacterial effect.
2‧‧‧奈米銀複合二氧化鈦薄膜 2‧‧‧Nano silver composite titanium dioxide film
22‧‧‧二氧化鈦 22‧‧‧ Titanium dioxide
24‧‧‧奈米銀 24‧‧‧Nee Silver
Claims (5)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102224034U TWM479764U (en) | 2013-12-19 | 2013-12-19 | Nanostructure thin film of titanium dioxide particle with nano silver particle |
| US14/228,510 US9522384B2 (en) | 2013-03-28 | 2014-03-28 | Photocatalytic structure and method for manufacturing photocatalytic sol-gels |
| CN201420691966.XU CN204503104U (en) | 2013-12-19 | 2014-11-18 | Structure of nano-silver composite titanium dioxide film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102224034U TWM479764U (en) | 2013-12-19 | 2013-12-19 | Nanostructure thin film of titanium dioxide particle with nano silver particle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM479764U true TWM479764U (en) | 2014-06-11 |
Family
ID=51395073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102224034U TWM479764U (en) | 2013-03-28 | 2013-12-19 | Nanostructure thin film of titanium dioxide particle with nano silver particle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204503104U (en) |
| TW (1) | TWM479764U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10118170B1 (en) * | 2018-01-09 | 2018-11-06 | Aleddra Inc. | Anti-bacterial lighting apparatus |
| CN108579768B (en) * | 2018-01-12 | 2020-08-04 | 合肥师范学院 | Few-layer MoS2Modified Ag-TiO2Preparation method of nano composite film |
-
2013
- 2013-12-19 TW TW102224034U patent/TWM479764U/en not_active IP Right Cessation
-
2014
- 2014-11-18 CN CN201420691966.XU patent/CN204503104U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN204503104U (en) | 2015-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shoueir et al. | Tailoring the surface reactivity of plasmonic Au@ TiO2 photocatalyst bio-based chitosan fiber towards cleaner of harmful water pollutants under visible-light irradiation | |
| Wang et al. | Bioinspired synthesis of photocatalytic nanocomposite membranes based on synergy of Au-TiO2 and polydopamine for degradation of tetracycline under visible light | |
| Zhou et al. | Highly efficient photo-Fenton degradation of methyl orange facilitated by slow light effect and hierarchical porous structure of Fe2O3-SiO2 photonic crystals | |
| Ochiai et al. | Photoelectrochemical properties of TiO2 photocatalyst and its applications for environmental purification | |
| Yu et al. | Hydrothermal preparation and photocatalytic activity of mesoporous Au–TiO2 nanocomposite microspheres | |
| US9522384B2 (en) | Photocatalytic structure and method for manufacturing photocatalytic sol-gels | |
| TW201526987A (en) | Method of producing titania sol with nano silver particle, photo-catalyst coating solution, photo-catalyst component and the use | |
| Choi et al. | Recyclable Ag-coated Fe3O4@ TiO2 for efficient photocatalytic oxidation of chlorophenol | |
| Wang et al. | Preparation of carbon foam-loaded nano-TiO2 photocatalyst and its degradation on methyl orange | |
| Alem et al. | The effect of silver doping on photocatalytic properties of titania multilayer membranes | |
| Yashas et al. | Facile synthesis of SnO 2 2D nanoflakes for ultrasound-assisted photodegradation of tetracycline hydrochloride | |
| Kalpana et al. | A novel approach for the synthesis of highly active ZnO/TiO2/Ag2O nanocomposite and its photocatalytic applications | |
| CN105582916A (en) | Method for preparing photocatalyst by sequentially depositing nanogold and rhodium on titanium dioxide | |
| Gomathi Devi et al. | Disinfection of E scherichia coli gram negative bacteria using surface modified TiO2: Optimization of Ag metallization and depiction of charge transfer mechanism | |
| Uddin et al. | Tailoring the photocatalytic reaction rate of a nanostructured TiO 2 matrix using additional gas phase oxygen | |
| Phattepur et al. | Synthesis of gadolinium-doped TiO2 thin films by sol–gel spin coating technique and its application in degradation of rhodamine-B | |
| Shukor et al. | Metal oxide and activated carbon as photocatalyst for waste water treatment | |
| TW201934197A (en) | Photocatalyst composition | |
| JP2011088037A (en) | Method for producing thermal spray material and method for producing thermally-sprayed coating film | |
| Dinkar et al. | Sm-doped TiO2 nanoparticles with high photocatalytic activity for ars dye under visible light synthesized by ultrasonic assisted sol-gel method | |
| TWM479764U (en) | Nanostructure thin film of titanium dioxide particle with nano silver particle | |
| Wang et al. | Photocatalysts for solar-induced water disinfection: new developments and opportunities | |
| JP2020040047A (en) | Photocatalyst dispersion liquid, photocatalyst composite material and photocatalyst device | |
| Hoang et al. | Antibacterial activities of gel-derived Ag-TiO 2-SiO 2 nanomaterials under different light irradiation. | |
| TW201902353A (en) | Method of producing nano ceria-titania binary oxide sol and its application in antibacteria |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK4K | Expiration of patent term of a granted utility model |